The value of (1 + i)/(1 − i) is
A−i
B−1
C1
Di
Answer & Solution
Correct answer: D. i
Multiply num and denom by (1+i): (1+i)²/((1)²+(1)²) = 2i/2 = i.
Related questions
The number of distinct $n$th roots of a non-zero complex number is:Using De Moivre's theorem, $(\cos\theta + i in\theta)^4$ equals:The modulus of $z = 5 + 12i$ is:The conjugate of $z = 3 - 4i$ is:In z = a + ib, Re(z) and Im(z) are|z₁ z₂| equalsIf z = a + ib is purely imaginary, thenThe roots of x² + 1 = 0 are